Lamp



FIG. 1 is a perspective view of a lamp showing my new design and including a mounting feature shown in dashed lines herein and throughout for illustrative purposes only and forming no part of the claimed invention;

FIG. 2 is a front view thereof;

FIG. 3 is an enlarged partial view thereof; and,

FIG. 4 is another enlarged partial view thereof. 

I claim, the ornamental design for a lamp, as shown and described. 